TextField maxLength - Android Jetpack Compose [英] TextField maxLength - Android Jetpack Compose

问题描述

是否有任何开箱即用的解决方案来限制 TextField 中的字符大小?我在 XML 中没有看到任何 maxLength 参数.

Is there any out of the box solution for limiting the character size in TextField's ? I don't see any maxLength parameter like we had in XML.

推荐答案

1.0.x 没有内置参数.您可以使用以下内容:

With 1.0.x there isn't a built-in parameter. You can use something like:

var text by remember { mutableStateOf(TextFieldValue("")) }
val maxChar = 5

TextField(
    singleLine = true,
    value = text,
    onValueChange = {
        if (it.length <= maxChar) text = it         
    }
)

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